Honeywell CM900 - Manual

Honeywell CM900

Honeywell CM900 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – CM900 Wireless - Programmable Room Thermostat; ) Installation Information; reduce the RF signal significantly more.; Typical example of Building Fabric Signal losses
  • Page 3 – Installation Guide; ) Installing the CM900 Wireless System; other system options are available refer to section; Installing the Relay Box; Do not mount on metal wall boxes.
  • Page 4 – DATE; Rebinding Procedure
  • Page 5 – Wall bracket
  • Page 6 – Automatic Operation; Installer Mode; Relay Box Fail-Safe Mode Setup; ) Basic Operation of the System; Installer Parameters Table; BDR91 Relay Box
  • Page 7 – Entering Installer Mode; OFF
  • Page 8 – Using the Room Thermostat for Specific Applications; Specific Application:
  • Page 9 – Notes; Up setting. To exit the Installer Mode move the slider switch to the; AUTO; or; MAN; Parameter
  • Page 11 – ) Additional Installation Information; Binding an HR80 Radiator Controller to the Room Thermostat
  • Page 12 – Trouble Shooting Guide; Honeywell Control Systems Ltd.; Possible Cause; Diagnostic Mode; switch to the
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CM900 Wireless

Installation Guide

CM927 / CM921 Wireless Programmable
Room Thermostat & BDR91 Relay Box

Description

The Honeywell CM900 Wireless (CM927 or

CM921) is a modern wireless programmable

room thermostat based on Honeywell’s proven

programming philosophy. To further improve the

ease of use, this product includes an extra large

LCD display with backlighting and LoT Technology

to assist customers during daily use.
The CM927/921 room thermostat communicates

with the BDR91 Relay Box on an 868MHz Radio

Frequency (RF) band to control a single heating

system component such as a boiler, pump or

zone valve. Neither product will communicate with

other RF products that use different frequencies or

communication protocols.

Note: The RF link between the individual room

thermostat (CM927/921) and Relay Box (BDR91)

in system packs provided by Honeywell is pre-

configured at the factory and therefore SHOULD

be installed at the same site. This makes the

installation process fast and easy, but if products

from individual system packs are separated, or

mixed with other pre-configured system packs

during installations please refer to section

5.1

Binding / Rebinding Procedure

to bind the desired

units together and allow them to communicate with

each other.

Table of Contents

Section

Page

1) Installation Information ................................. 2

2) Installing the CM900 Wireless System ......... 3

2.1 Installing the Relay Box

................................... 3

2.2 Installing the Room Thermostat

........................ 4

2.2.1 Power Up

............................................... 4

2.2.2 RF Communication Check

........................ 4

2.2.3 Locating the Room Thermostat

................. 5

2.3 System Check

................................................ 5

3) Basic Operation of the System ..................... 6

3.1 Automatic Operation

....................................... 6

3.2 Temporary Manual Override

............................. 6

3.3 Communication Loss

...................................... 6

4) Installer Mode ................................................. 6

4.1 Entering Installer Mode

................................... 7

4.2 BDR91 Relay Box Fail-Safe Mode Setup

............ 7

4.3 Using the Room Thermostat for Specific Applications

.. 8

4.4 Using the Special Features of the Room Thermostat

.. 8

4.5 Installer Parameters Table

............................... 9

4.5.1 Category 1 - Room Thermostat Settings

..... 9

4.5.2 Category 2 - System Settings

.................. 10

5) Additional Installation Information ............. 11

5.1 Binding / Rebinding Procedure

...................... 11

5.2 Multi-Zone System

........................................ 11

5.3 Binding an HR80 Radiator Controller
to the Room Thermostat

................................ 11

6) Trouble Shooting .......................................... 12

6.1 Trouble Shooting Guide

................................. 12

6.2 Diagnostics Mode

........................................ 12

50039987-003 A

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Summary

Page 2 - CM900 Wireless - Programmable Room Thermostat; ) Installation Information; reduce the RF signal significantly more.; Typical example of Building Fabric Signal losses

2 CM900 Wireless - Programmable Room Thermostat 1) Installation Information As these products communicate using RF technology special care must be taken during installation. The location of the RF components as well as the building structure may influence performance of the RF system. To assure syst...

Page 3 - Installation Guide; ) Installing the CM900 Wireless System; other system options are available refer to section; Installing the Relay Box; Do not mount on metal wall boxes.

Installation Guide 3 2) Installing the CM900 Wireless System Please follow the illustrations and information below in sequence to install the Relay Box and room thermostat correctly. For applications other than gas boilers, enabling special features and to see what other system options are available...

Page 4 - DATE; Rebinding Procedure

4 CM900 Wireless - Programmable Room Thermostat 2.2 Installing the Room Thermostat2.2.1 Power Up 1. Remove the battery cover and insert the batteries supplied with the room thermostat (2 x AA LR6 Alkaline Batteries). 2. On the initial power up the available user interface languages will be displayed...

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